[Zombero: Archero Hero Shooter]

Hi. I tried running the script but i got error.

Script terminado:
Erro no script: luaj.o: /storage/emulated/0/Download/Zombero_enc.lua:-1

attempt to index ? (a nil value) with key 'start'
level = 1, const = 13, proto = 0, upval = 1, vars = 250, code = 291
GETTABLE v0 v0 v211
 ; PC 228 CODE 0034C007 OP 7 A 0 B 0 C 211 Bx 211 sBx -130860
stack traceback:
    /storage/emulated/0/Download/Zombero_enc.lua: in function 'getlib_3'
    /storage/emulated/0/Download/Zombero_enc.lua: in main chunk
    (...tail calls...)
    [Java]: in ?
    at luaj.LuaValue.f(src:989)
    at luaj.LuaValue.c(src:2864)
    at luaj.LuaValue.i(src:2767)
    at luaj.LuaValue.w(src:1094)
    at luaj.LuaClosure.a(src:363)
    at luaj.LuaClosure.l(src:160)
    at luaj.LuaClosure.a(src:533)
    at luaj.LuaClosure.a(src:207)
    at luaj.am.b(src:73)
    at luaj.LuaClosure.a(src:600)
    at luaj.LuaClosure.l(src:160)
    at android.ext.Script.d(src:6056)
    at android.ext.Script$ScriptThread.run(src:5785)